ported throttle body
01-28-2009, 03:03 PM
#26
[QUOTE=BDC;2839847]
You and me both, atleast on a larger scale. I've done a few for NA cars and one for a turbo car (suay's) so I'm still trying to feel it all out myself to see if the cost of labour and parts by you guys is justified in terms of performance gain. I personally feel that it is having done derivatives of this for a long time but it's ultimately up to you guys.
The TB I got was from a friend who parts out Rx8's. That was a one-time deal and was done to try this out on Suay's car a few months back. I might be able to do it again but will probably only do it as a sale item on eBay after it's been ported similar to how I did it with Suay.
B
So far all we got is seat of the pants dyno tests and I dont put much trust in that. Before and after MAF readings are super easy to do, to bad the tests were not done by your other customers.
I will be staying tuned.
You and me both, atleast on a larger scale. I've done a few for NA cars and one for a turbo car (suay's) so I'm still trying to feel it all out myself to see if the cost of labour and parts by you guys is justified in terms of performance gain. I personally feel that it is having done derivatives of this for a long time but it's ultimately up to you guys.
The TB I got was from a friend who parts out Rx8's. That was a one-time deal and was done to try this out on Suay's car a few months back. I might be able to do it again but will probably only do it as a sale item on eBay after it's been ported similar to how I did it with Suay.
B
I will be staying tuned.
01-28-2009, 03:39 PM
#27
SARX Legend
iTrader: (46)
I would like to see some hard data, but I have seen good results with previous tubo cars I have owned. definately keep me posted, but i would rather just buy it an then maybe get some kind of credit as a core or something.
01-28-2009, 04:00 PM
#28
Registered User
Join Date: Apr 2006
Posts: 511
Likes: 0
Received 0 Likes
on
0 Posts
That falls in the category of "Every Little Bit Helps". The trick is getting enough little bits. We used to take a tri-stone hone and open up slide carbs from 38-39.5 mm on motorcycles. Not a big power gain, but ELBH.
Its conceivable that despite Mazda's best efforts to get every last drop that judicious attention to detail with things like cleaning up all the potential flow spoilers on the intake and exhaust side and retaining the stock exhaust parts there are probably 10 horses waiting to be freed.
Its conceivable that despite Mazda's best efforts to get every last drop that judicious attention to detail with things like cleaning up all the potential flow spoilers on the intake and exhaust side and retaining the stock exhaust parts there are probably 10 horses waiting to be freed.
01-28-2009, 06:57 PM
#29
Its conceivable that despite Mazda's best efforts to get every last drop that judicious attention to detail with things like cleaning up all the potential flow spoilers on the intake and exhaust side and retaining the stock exhaust parts there are probably 10 horses waiting to be freed.
01-29-2009, 10:58 AM
#33
But you haven't changed the Butterfly.
All your doing is making a cone effect. Over that short distance I don't see how an increased volume will impact performance.
But then again you have to benchflow it or test it.
Waiting for some users feed back.
Daddy Rat Fink ... where are you?
.
.
All your doing is making a cone effect. Over that short distance I don't see how an increased volume will impact performance.
But then again you have to benchflow it or test it.
Waiting for some users feed back.
Daddy Rat Fink ... where are you?
.
.
01-29-2009, 11:39 AM
#34
BDC Motorsports
But you haven't changed the Butterfly.
All your doing is making a cone effect. Over that short distance I don't see how an increased volume will impact performance.
But then again you have to benchflow it or test it.
Waiting for some users feed back.
Daddy Rat Fink ... where are you?
.
.
All your doing is making a cone effect. Over that short distance I don't see how an increased volume will impact performance.
But then again you have to benchflow it or test it.
Waiting for some users feed back.
Daddy Rat Fink ... where are you?
.
.
http://bdc.cyberosity.com/v/Throttle...After.jpg.html
Granted, that's a high-powered setup (turbocharged 13BT in a '79 Triumph Spitfire) but it shows a before and after of doing one of my throttle body jobs without having any butterflies changed. Even though overall peak power wasn't changed much (and I don't expect it to), the benefits came in a much more aggressive boost thresshold and therefore widening the effective power band. That's the kind of effect I expect.
Like Kartweb has mentioned, assuming you're not familiar with the particulars of this, you'd be surprised what kind of things can be done here and there that are minimally invasive to the car that give a benefit. Those kinds of things, like this TB mob, compliment each other. The first one of these Rx8 TB's I did was about 9 months ago on a friend's 8 and I was pretty skeptical about it doing much. I was surprised by his feedback after he'd taken it out: the car had snappier throttle, better low to mid range, and was alot more grunty through the RPM band. He said it made the car quicker. Granted, he already had an intake mod done on the car (one of those Racing Suction boxes?) so perhaps the two complimented one another. His car is otherwise stock.
B
01-29-2009, 11:45 AM
#35
Brian, why don't you touch the metal bar that holds the butterfly itself?
Making that bar thinner should guarantee some other minimal gains in flow and it is sufficiently strong to be grinded down a bit without risks.
Just an input
Making that bar thinner should guarantee some other minimal gains in flow and it is sufficiently strong to be grinded down a bit without risks.
Just an input
01-29-2009, 11:56 AM
#36
Like Kartweb has mentioned, assuming you're not familiar with the particulars of this, you'd be surprised what kind of things can be done here and there that are minimally invasive to the car that give a benefit. Those kinds of things, like this TB mob, compliment each other.
I agree, its the little things.
Then they ask you why are you are so fast at the track.
A flywheel makes it pretty quick.
Anything that can boost the quickness of throttle response helps on the track in third gear.
The tracks here in So Calf make you way under powered in 3rd around the corners.
I agree, its the little things.
Then they ask you why are you are so fast at the track.
A flywheel makes it pretty quick.
Anything that can boost the quickness of throttle response helps on the track in third gear.
The tracks here in So Calf make you way under powered in 3rd around the corners.
Last edited by Razz1; 01-29-2009 at 12:56 PM.
03-03-2009, 02:12 PM
#38
I will be establishing two data points next week with the ported/polished throttle body; 1) MAF sensor readings and, 2) engine vacuum.
I will run the engine to 9,500 RPMs and let you all know the before/after results I get, both in terms of tangible data and driving impressions.
I will run the engine to 9,500 RPMs and let you all know the before/after results I get, both in terms of tangible data and driving impressions.
03-03-2009, 04:30 PM
#41
Life begins @ 30 psi
Join Date: Mar 2008
Location: Columbia, MD
Posts: 1,745
Likes: 0
Received 0 Likes
on
0 Posts
I <3 CRH.
03-03-2009, 10:59 PM
#42
Work hard Drive Hard!
Thread Starter
Join Date: Aug 2006
Location: south texas
Posts: 229
Likes: 0
Received 0 Likes
on
0 Posts
Wow totally forgot about this page!!!!
I feel the difference and its not because of the money! Money bought me scotts heavily expensive turbo kit and I had so many problems! If your any of you are thinking Brian's stuff is no good, check out the rx-7 club.You'll see for your self. Keep up the good work brian, we need more people like you.
04-06-2009, 02:55 PM
#44
I guess this discussion just died huh? No flow charts no dyno be it butt, AP, G-tech types, mechanical, load bearing, WHATEVER.
I'm buying a turbo system next mth and thought about sending off my TB at the same time I send the turbo off. I would like a little bit more data before doing such so someone chime in please.
YEAH!! for me turbo build done in two mths too bad it will be 6 mths before I can drive it.
I'm buying a turbo system next mth and thought about sending off my TB at the same time I send the turbo off. I would like a little bit more data before doing such so someone chime in please.
YEAH!! for me turbo build done in two mths too bad it will be 6 mths before I can drive it.
04-07-2009, 03:52 PM
#48
BDC Motorsports
I guess this discussion just died huh? No flow charts no dyno be it butt, AP, G-tech types, mechanical, load bearing, WHATEVER.
I'm buying a turbo system next mth and thought about sending off my TB at the same time I send the turbo off. I would like a little bit more data before doing such so someone chime in please.
YEAH!! for me turbo build done in two mths too bad it will be 6 mths before I can drive it.
I'm buying a turbo system next mth and thought about sending off my TB at the same time I send the turbo off. I would like a little bit more data before doing such so someone chime in please.
YEAH!! for me turbo build done in two mths too bad it will be 6 mths before I can drive it.
B
